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<h1>ProGuard Reference Card</h1>

<h2>Usage</h2>

<code><b>java -jar proguard.jar </b></code><i>options</i> ...
<p>
&nbsp;&nbsp;Typically:
<p>
<code><b>java -jar proguard.jar @myconfig.pro</b></code>
<p>

<h2>Options</h2>

<table cellspacing="10">

<tr>
<td valign="top"><a href="usage.html#at"><code><b>@</b></code></a><a href="usage.html#filename"><i>filename</i></a></td>

<td>Short for '<code>-include</code> <i>filename</i>'.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#include"><code><b>-include</b></code></a>
                 <a href="usage.html#filename"><i>filename</i></a></td>

<td>Read configuration options from the given file.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#basedirectory"><code><b>-basedirectory</b></code></a>
                 <a href="usage.html#filename"><i>directoryname</i></a></td>

<td>Specifies the base directory for subsequent relative file names.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#injars"><code><b>-injars</b></code></a>
                 <a href="usage.html#classpath"><i>class_path</i></a></td>
<td>Specifies the program jars (or wars, ears, zips, or directories).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#outjars"><code><b>-outjars</b></code></a>
                 <a href="usage.html#classpath"><i>class_path</i></a></td>
<td>Specifies the name of the output jars (or wars, ears, zips, or
    directories).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#libraryjars"><code><b>-libraryjars</b></code></a>
                 <a href="usage.html#classpath"><i>class_path</i></a></td>
<td>Specifies the library jars (or wars, ears, zips, or directories).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#skipnonpubliclibraryclasses"><code><b>-skipnonpubliclibraryclasses</b></code></a></td>
<td>Ignore non-public library classes.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontskipnonpubliclibraryclasses"><code><b>-dontskipnonpubliclibraryclasses</b></code></a></td>
<td>Don't ignore non-public library classes (the default).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontskipnonpubliclibraryclassmembers"><code><b>-dontskipnonpubliclibraryclassmembers</b></code></a></td>
<td>Don't ignore package visible library class members.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepdirectories"><code><b>-keepdirectories</b></code></a>
                 [<a href="usage.html#filters"><i>directory_filter</i></a>]</td>
<td>Keep the specified directories in the output jars (or wars, ears, zips, or
    directories).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#target"><code><b>-target</b></code></a>
                 <i>version</i></td>
<td>Set the given version number in the processed classes.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#forceprocessing"><code><b>-forceprocessing</b></code></a></td>
<td>Process the input, even if the output seems up to date.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keep"><code><b>-keep</b></code></a>
                 [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the specified classes <i>and</i> class members.</td>

</tr>
<tr>
<td valign="top"><a href="usage.html#keepclassmembers"><code><b>-keepclassmembers</b></code></a>
                 [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the specified class members, if their classes are preserved as
    well.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepclasseswithmembers"><code><b>-keepclasseswithmembers</b></code></a>
                 [<a href="usage.html#keepoptionmodifiers">,<i>modifier</i></a>,...]
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the specified classes <i>and</i> class members, if all of the
    specified class members are present.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepnames"><code><b>-keepnames</b></code></a>
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the names of the specified classes <i>and</i> class members (if
    they aren't removed in the shrinking step).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepclassmembernames"><code><b>-keepclassmembernames</b></code></a>
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the names of the specified class members (if they aren't removed
    in the shrinking step).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepclasseswithmembernames"><code><b>-keepclasseswithmembernames</b></code></a>
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Preserve the names of the specified classes <i>and</i> class members, if
    all of the specified class members are present (after the shrinking
    step).</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#printseeds"><code><b>-printseeds</b></code></a>
                 [<a href="usage.html#filename"><i>filename</i></a>]</td>
<td>List classes and class members matched by the various <code>-keep</code>
    options, to the standard output or to the given file.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontshrink"><code><b>-dontshrink</b></code></a></td>
<td>Don't shrink the input class files.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#printusage"><code><b>-printusage</b></code></a>
                 [<a href="usage.html#filename"><i>filename</i></a>]</td>
<td>List dead code of the input class files, to the standard output or to the
    given file.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#whyareyoukeeping"><code><b>-whyareyoukeeping</b></code></a>
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Print details on why the given classes and class members are being kept in
    the shrinking step.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontoptimize"><code><b>-dontoptimize</b></code></a></td>
<td>Don't optimize the input class files.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#optimizations"><code><b>-optimizations</b></code></a>
                 <a href="optimizations.html"><i>optimization_filter</i></a></td>
<td>The optimizations to be enabled and disabled.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#optimizationpasses"><code><b>-optimizationpasses</b></code></a>
                 <i>n</i></td>
<td>The number of optimization passes to be performed.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#assumenosideeffects"><code><b>-assumenosideeffects</b></code></a>
                 <a href="usage.html#classspecification"><i>class_specification</i></a></td>
<td>Assume that the specified methods don't have any side effects, while
    optimizing.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#allowaccessmodification"><code><b>-allowaccessmodification</b></code></a></td>
<td>Allow the access modifiers of classes and class members to be modified,
    while optimizing.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#mergeinterfacesaggressively"><code><b>-mergeinterfacesaggressively</b></code></a></td>
<td>Allow any interfaces to be merged, while optimizing.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontobfuscate"><code><b>-dontobfuscate</b></code></a></td>
<td>Don't obfuscate the input class files.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#printmapping"><code><b>-printmapping</b></code></a>
                 [<a href="usage.html#filename"><i>filename</i></a>]</td>
<td>Print the mapping from old names to new names for classes and class members
    that have been renamed, to the standard output or to the given file.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#applymapping"><code><b>-applymapping</b></code></a>
                 <a href="usage.html#filename"><i>filename</i></a></td>
<td>Reuse the given mapping, for incremental obfuscation.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#obfuscationdictionary"><code><b>-obfuscationdictionary</b></code></a>
                 <a href="usage.html#filename"><i>filename</i></a></td>
<td>Use the words in the given text file as obfuscated field names and method names.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#classobfuscationdictionary"><code><b>-classobfuscationdictionary</b></code></a>
                 <a href="usage.html#filename"><i>filename</i></a></td>
<td>Use the words in the given text file as obfuscated class names.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#packageobfuscationdictionary"><code><b>-packageobfuscationdictionary</b></code></a>
                 <a href="usage.html#filename"><i>filename</i></a></td>
<td>Use the words in the given text file as obfuscated package names.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#overloadaggressively"><code><b>-overloadaggressively</b></code></a></td>
<td>Apply aggressive overloading while obfuscating.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#useuniqueclassmembernames"><code><b>-useuniqueclassmembernames</b></code></a></td>
<td>Ensure uniform obfuscated class member names for subsequent incremental
    obfuscation.</td> </tr>

<tr>
<td valign="top"><a href="usage.html#dontusemixedcaseclassnames"><code><b>-dontusemixedcaseclassnames</b></code></a></td>
<td>Don't generate mixed-case class names while obfuscating.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keeppackagenames"><code><b>-keeppackagenames</b></code></a>
                 [<i><a href="usage.html#filters">package_filter</a></i>]</td>
<td>Keep the specified package names from being obfuscated.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#flattenpackagehierarchy"><code><b>-flattenpackagehierarchy</b></code></a>
                 [<i>package_name</i>]</td>
<td>Repackage all packages that are renamed into the single given parent
    package.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#repackageclasses"><code><b>-repackageclasses</b></code></a>
                 [<i>package_name</i>]</td>
<td>Repackage all class files that are renamed into the single given
    package.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepattributes"><code><b>-keepattributes</b></code></a>
                 [<i><a href="usage.html#filters">attribute_filter</a></i>]</td>
<td>Preserve the given optional attributes; typically
    <code>Exceptions</code>, <code>InnerClasses</code>,
    <code>Signature</code>, <code>Deprecated</code>,
    <code>SourceFile</code>, <code>SourceDir</code>,
    <code>LineNumberTable</code>,
    <code>LocalVariableTable</code>, <code>LocalVariableTypeTable</code>,
    <code>Synthetic</code>, <code>EnclosingMethod</code>, and
    <code>*Annotation*</code>.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#keepparameternames"><code><b>-keepparameternames</b></code></a></td>
<td>Keep the parameter names and types of methods that are kept.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#renamesourcefileattribute"><code><b>-renamesourcefileattribute</b></code></a>
                 [<i>string</i>]</td>
<td>Put the given constant string in the <code>SourceFile</code>
    attributes.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#adaptclassstrings"><code><b>-adaptclassstrings</b></code></a>
                 [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
<td>Adapt string constants in the specified classes, based on the obfuscated
    names of any corresponding classes.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#adaptresourcefilenames"><code><b>-adaptresourcefilenames</b></code></a>
                 [<a href="usage.html#filefilters"><i>file_filter</i></a>]</td>
<td>Rename the specified resource files, based on the obfuscated names of the
    corresponding class files.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#adaptresourcefilecontents"><code><b>-adaptresourcefilecontents</b></code></a>
                 [<a href="usage.html#filefilters"><i>file_filter</i></a>]</td>
<td>Update the contents of the specified resource files, based on the
    obfuscated names of the processed classes.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontpreverify"><code><b>-dontpreverify</b></code></a></td>
<td>Don't preverify the processed class files.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#microedition"><code><b>-microedition</b></code></a></td>
<td>Target the processed class files at Java Micro Edition.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#verbose"><code><b>-verbose</b></code></a></td>
<td>Write out some more information during processing.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontnote"><code><b>-dontnote</b></code></a>
                 [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
<td>Don't print notes about potential mistakes or omissions in the
    configuration.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dontwarn"><code><b>-dontwarn</b></code></a>
                 [<a href="usage.html#filters"><i>class_filter</i></a>]</td>
<td>Don't warn about unresolved references at all.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#ignorewarnings"><code><b>-ignorewarnings</b></code></a></td>
<td>Print warnings about unresolved references, but continue processing
    anyhow.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#printconfiguration"><code><b>-printconfiguration</b></code></a>
                 [<a href="usage.html#filename"><i>filename</i></a>]</td>
<td>Write out the internal structure of the processed class files, to the
    standard output or to the given file.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#dump"><code><b>-dump</b></code></a>
                 [<a href="usage.html#filename"><i>filename</i></a>]</td>
<td>Write out the entire configuration in traditional ProGuard style, to the
    standard output or to the given file.</td>
</tr>

</table>
<p>
Notes:
<ul>

<li><i>class_path</i> is a list of jars, wars, ears, zips, and directories,
    with optional filters, separated by path separators.</li>
<li><i>filename</i> can contain Java system properties delimited by
    '<b>&lt;</b>' and '<b>&gt;</b>'.</li>
<li>If <i>filename</i> contains special characters, the entire name
    should be quoted with single or double quotes.</li>
</ul>
<p>

<h2>Overview of <code>Keep</code> Options</h2>

<table cellpadding="5">

<tr>
<th>Keep</th>
<td>From being removed or renamed</td>
<td>From being renamed</td>
</tr>

<tr>
<td>Classes and class members</td>
<td bgcolor="#E0E0E0"><a href="usage.html#keep"><code>-keep</code></a></td>
<td bgcolor="#E0E0E0"><a href="usage.html#keepnames"><code>-keepnames</code></a></td>
</tr>

<tr>
<td>Class members only</td>
<td bgcolor="#E0E0E0"><a href="usage.html#keepclassmembers"><code>-keepclassmembers</code></a></td>
<td bgcolor="#E0E0E0"><a href="usage.html#keepclassmembernames"><code>-keepclassmembernames</code></a></td>
</tr>

<tr>
<td>Classes and class members, if class members present</td>
<td bgcolor="#E0E0E0"><a href="usage.html#keepclasseswithmembers"><code>-keepclasseswithmembers</code></a></td>
<td bgcolor="#E0E0E0"><a href="usage.html#keepclasseswithmembernames"><code>-keepclasseswithmembernames</code></a></td>
</tr>

</table>
<p>

<h2>Keep Option Modifiers</h2>

<table cellspacing="10">

<tr>
<td valign="top"><a href="usage.html#allowshrinking"><code><b>allowshrinking</b></code></a></td>
<td>The entry points specified in the keep tag may be shrunk.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#allowoptimization"><code><b>allowoptimization</b></code></a></td>
<td>The entry points specified in the keep tag may be optimized.</td>
</tr>

<tr>
<td valign="top"><a href="usage.html#allowobfuscation"><code><b>allowobfuscation</b></code></a></td>
<td>The entry points specified in the keep tag may be obfuscated.</td>
</tr>

</table>
<p>

<h2>Class Specifications</h2>

<pre>
[<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>final</b>|<b>abstract</b> ...] [<b>!</b>]<b>interface</b>|<b>class</b> <i>classname</i>
    [<b>extends</b>|<b>implements</b> [<b>@</b><i>annotationtype</i>] <i>classname</i>]
[<b>{</b>
    [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b>|<b>volatile</b>|<b>transient</b> ...] <b>&lt;fields&gt;</b> |
                                                                      (<i>fieldtype fieldname</i>)<b>;</b>
    [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b>|<b>synchronized</b>|<b>native</b>|<b>abstract</b>|<b>strictfp</b> ...] <b>&lt;methods&gt;</b> |
                                                                                           <b>&lt;init&gt;(</b><i>argumenttype,...</i><b>)</b> |
                                                                                           <i>classname</i><b>(</b><i>argumenttype,...</i><b>)</b> |
                                                                                           (<i>returntype methodname</i><b>(</b><i>argumenttype,...</i><b>)</b>)<b>;</b>
    [<b>@</b><i>annotationtype</i>] [[<b>!</b>]<b>public</b>|<b>private</b>|<b>protected</b>|<b>static</b> ... ] <b>*;</b>
    ...
<b>}</b>]
</pre>
<p>
Notes:
<ul>
<li>Class names must always be fully qualified, i.e. including their package
    names.</li>
<li>Types in <i>classname</i>, <i>annotationtype</i>, <i>returntype</i>, and
    <i>argumenttype</i> can contain wildcards: '<code><b>?</b></code>' for a
    single character, '<code><b>*</b></code>' for any number of characters
    (but not the package separator), '<code><b>**</b></code>' for any number
    of (any) characters, '<code><b>%</b></code>' for any primitive type,
    '<code><b>***</b></code>' for any type, and '<code><b>...</b></code>' for       any number of arguments.</li>
<li><i>fieldname</i> and <i>methodname</i> can contain wildcards as well:
    '<code><b>?</b></code>' for a single character and '<code><b>*</b></code>'
    for any number of characters.</li>
</ul>

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